The document describes the ADG221 and ADG222 as monolithic CMOS devices comprising four independently selectable single-pole single-throw (SPST) switches. These devices are designed with an enhanced LC MOS process to provide a signal handling capability of +15V, low on-resistance (Ron), and low leakage currents suitable for high precision circuits.
A key feature is the inclusion of on-chip latches that facilitate microprocessor interfacing by allowing digital inputs to be latched with a Write (WR) signal. The switches exhibit break-before-make action, which allows multiple outputs to be used together in multiplexer applications while minimizing leakage errors. They are available in various packages including DIP, SOIC, PLCC, and LCCC.
| Operating Temperature Range (Commercial) | -40°C to +85°C |
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The maximum supply voltage rating is 44V.